Weddell Sea iceberg drift: Five years of observations
Since 1999, 52 icebergs have been tagged with GPS buoys in the Weddell Seato enable monitoring of their position. The chosen icebergs were of small tomedium size, with a few icebergs larger than 10 km associatedwith the calving of icebergs A38 and A43 from the Ronne Ice Shelf.The majority of iceberg...
Published in: | Journal of Geophysical Research |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2006
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/11015/ https://epic.awi.de/id/eprint/11015/1/Sch2004aa.pdf https://doi.org/10.1029/2004JC002661 https://hdl.handle.net/10013/epic.21475 https://hdl.handle.net/10013/epic.21475.d001 |
id |
ftawi:oai:epic.awi.de:11015 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:11015 2023-09-05T13:17:30+02:00 Weddell Sea iceberg drift: Five years of observations Schodlok, Michael Hellmer, Hartmut Rohardt, Gerd Fahrbach, Eberhard 2006 application/pdf https://epic.awi.de/id/eprint/11015/ https://epic.awi.de/id/eprint/11015/1/Sch2004aa.pdf https://doi.org/10.1029/2004JC002661 https://hdl.handle.net/10013/epic.21475 https://hdl.handle.net/10013/epic.21475.d001 unknown https://epic.awi.de/id/eprint/11015/1/Sch2004aa.pdf https://hdl.handle.net/10013/epic.21475.d001 Schodlok, M. , Hellmer, H. orcid:0000-0002-9357-9853 , Rohardt, G. orcid:0000-0003-0479-7638 and Fahrbach, E. (2006) Weddell Sea iceberg drift: Five years of observations , Journal of geophysical research-oceans, Vol. 111(C6), C06018 . doi:10.1029/2004JC002661 <https://doi.org/10.1029/2004JC002661> , hdl:10013/epic.21475 EPIC3Journal of geophysical research-oceans, Vol. 111(C6), C06018 Article isiRev 2006 ftawi https://doi.org/10.1029/2004JC002661 2023-08-22T19:49:01Z Since 1999, 52 icebergs have been tagged with GPS buoys in the Weddell Seato enable monitoring of their position. The chosen icebergs were of small tomedium size, with a few icebergs larger than 10 km associatedwith the calving of icebergs A38 and A43 from the Ronne Ice Shelf.The majority of icebergs were tagged off Neumayer Station (8E, 70S).It was found that smaller bergs with edges shorter than 200 m had the shortestlife cycle (< 0.5 yr). Iceberg and thus freshwater export out of theWeddell Sea was found to be highly variable. In one year the majority of buoysdeployed remained in the Weddell Sea, constituting about 40 % of the NCEP P-Efreshwater input, whereas in other years all of the tagged icebergs were exported.The observed drifts of icebergs and sea-ice showed a remarkably coherent motion.The analysis of an iceberg - sea-ice buoy array in the western Weddell Seaand an iceberg array in the eastern Weddell Sea showed a coherent sea-iceiceberg drift in sea-ice concentrations above 86 %. Dynamic kinematic parameter(DKP) during the course of coherent movement were low and deviations from the meancourse associated with the passage of low-pressure system. The length scale ofcoherent movement was estimated to be less than 250km; about half the value found forthe Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean Iceberg* Sea ice Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Neumayer Neumayer Station Weddell Weddell Sea Journal of Geophysical Research 111 C6 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Since 1999, 52 icebergs have been tagged with GPS buoys in the Weddell Seato enable monitoring of their position. The chosen icebergs were of small tomedium size, with a few icebergs larger than 10 km associatedwith the calving of icebergs A38 and A43 from the Ronne Ice Shelf.The majority of icebergs were tagged off Neumayer Station (8E, 70S).It was found that smaller bergs with edges shorter than 200 m had the shortestlife cycle (< 0.5 yr). Iceberg and thus freshwater export out of theWeddell Sea was found to be highly variable. In one year the majority of buoysdeployed remained in the Weddell Sea, constituting about 40 % of the NCEP P-Efreshwater input, whereas in other years all of the tagged icebergs were exported.The observed drifts of icebergs and sea-ice showed a remarkably coherent motion.The analysis of an iceberg - sea-ice buoy array in the western Weddell Seaand an iceberg array in the eastern Weddell Sea showed a coherent sea-iceiceberg drift in sea-ice concentrations above 86 %. Dynamic kinematic parameter(DKP) during the course of coherent movement were low and deviations from the meancourse associated with the passage of low-pressure system. The length scale ofcoherent movement was estimated to be less than 250km; about half the value found forthe Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Schodlok, Michael Hellmer, Hartmut Rohardt, Gerd Fahrbach, Eberhard |
spellingShingle |
Schodlok, Michael Hellmer, Hartmut Rohardt, Gerd Fahrbach, Eberhard Weddell Sea iceberg drift: Five years of observations |
author_facet |
Schodlok, Michael Hellmer, Hartmut Rohardt, Gerd Fahrbach, Eberhard |
author_sort |
Schodlok, Michael |
title |
Weddell Sea iceberg drift: Five years of observations |
title_short |
Weddell Sea iceberg drift: Five years of observations |
title_full |
Weddell Sea iceberg drift: Five years of observations |
title_fullStr |
Weddell Sea iceberg drift: Five years of observations |
title_full_unstemmed |
Weddell Sea iceberg drift: Five years of observations |
title_sort |
weddell sea iceberg drift: five years of observations |
publishDate |
2006 |
url |
https://epic.awi.de/id/eprint/11015/ https://epic.awi.de/id/eprint/11015/1/Sch2004aa.pdf https://doi.org/10.1029/2004JC002661 https://hdl.handle.net/10013/epic.21475 https://hdl.handle.net/10013/epic.21475.d001 |
geographic |
Arctic Arctic Ocean Neumayer Neumayer Station Weddell Weddell Sea |
geographic_facet |
Arctic Arctic Ocean Neumayer Neumayer Station Weddell Weddell Sea |
genre |
Arctic Arctic Ocean Iceberg* Sea ice Weddell Sea |
genre_facet |
Arctic Arctic Ocean Iceberg* Sea ice Weddell Sea |
op_source |
EPIC3Journal of geophysical research-oceans, Vol. 111(C6), C06018 |
op_relation |
https://epic.awi.de/id/eprint/11015/1/Sch2004aa.pdf https://hdl.handle.net/10013/epic.21475.d001 Schodlok, M. , Hellmer, H. orcid:0000-0002-9357-9853 , Rohardt, G. orcid:0000-0003-0479-7638 and Fahrbach, E. (2006) Weddell Sea iceberg drift: Five years of observations , Journal of geophysical research-oceans, Vol. 111(C6), C06018 . doi:10.1029/2004JC002661 <https://doi.org/10.1029/2004JC002661> , hdl:10013/epic.21475 |
op_doi |
https://doi.org/10.1029/2004JC002661 |
container_title |
Journal of Geophysical Research |
container_volume |
111 |
container_issue |
C6 |
_version_ |
1776198652215164928 |